Synaptophysin and GSK-3beta activity in the prefrontal cortex may underlie the effects of REM sleep deprivation and lithium on behavioral functions and memory performance in male rats.

Rapid-eye movement (REM) stage of sleep serves a critical role in processing cognitive and behavioral functions. Evidence shows that REM sleep deprivation (REM SD) strongly affects the mood state and cognitive abilities. However, there are many inconsistent reports.

Mind mapping in recalling and retrieving core contents in anesthesia technology students.

Background: Human memory represents the ability to recall and retrieve information. Learning methods have a great impact on remembering and retrieving material. This study was conducted to investigate the effect of the mind map learning method on the amount of recall and retrieval of the core contents of anesthesia technology students.

Sex difference affects fear extinction but not lithium efficacy in rats following fear-conditioning with respect to the hippocampal level of BDNF.

In rodents, exposure to electrical shock and creating a strong fear memory using fear-conditioning model can induce PTSD-like behavior. In this study, we induced a fear-conditioning model in rats and investigated freezing (PTSD-like) behavior, 21 days after three shocks exposure (0.6 mA, 3 s, 30 seconds interval) in both male and female rats.

Investigating heavy-metal soil contamination state on the rate of stomach cancer using remote sensing spectral features.

Heavy metal (HM) contamination in agricultural soils has been a serious environmental and health problem in the past decades. High concentration of HM threatens human health and can be a risk factor for many diseases such as stomach cancer. In order to investigate the relationship between HM content and stomach cancer, the under-study area should be adequately large so that the possible relationship between soil contamination and the patients' distribution can be studied.